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For hacking on the OTDT the following steps should get you going. Note that headless build and steps for a release are described at OTBuilding.

Since installing the OTDT already provides all dependencies, compiling in the IDE should work out of the box.
deploy / export plug-ins and features
Use the wizard Export > Plug-in Development > Deployable features and select these features:
  • org.eclipse.objectteams.otdt -- the umbrella feature for the IDE
  • org.eclipse.objectteams.otdt.core.patch -- patch feature containing the OT/J version of JDT/Core
  • org.eclipse.objectteams.otequinox -- OT/J runtime and integration for Equinox
building the command line compiler
You may simply use the org.eclipse.jdt.core_3.X.Y.v_OTDT_abc.jar produced by the above export.
  • Alternatively, for building the minimal ecotj.jar run org.eclipse.jdt.core/scripts/export-ecj.xml as Ant Build.
There are lots of individual JUnit suites, and aggregate suites, typically called s.t. like TestAll.
  • The central suite for OT/J is org.eclipse.objectteams.otdt.tests.otjld.AllTests
  • Each test suite can be invoked using Run As ... > JUnit Plug-in Test
  • For those tests not including any UI test launch can be optimized on the Main tab of the launch configuration by selecting Program to Run > Run an application > [No Application] - Headless Mode
projects and dependencies
The full list of plug-ins and features including dependencies can be found in /releng/map/

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